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| author | James Almer <jamrial@gmail.com> | 2018-03-21 22:37:46 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2018-03-22 16:41:10 -0300 |
| commit | 4f2ff3a53e170d77e1dd231d7246a74e186011c9 (patch) | |
| tree | 008406995dcafaf44ea886330b076c58c931f432 | |
| parent | 65616bc191b110af6a81aa38b1d15aa9879d8cbc (diff) | |
| download | ffmpeg-4f2ff3a53e170d77e1dd231d7246a74e186011c9.tar.gz | |
avcodec/mpeg4_unpack_bframes: make sure the packet is writable when data needs to be changed
Nothing currently guarantees that the packet passed to the bsf will
be writable.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
| -rw-r--r-- | libavcodec/mpeg4_unpack_bframes_bsf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/mpeg4_unpack_bframes_bsf.c b/libavcodec/mpeg4_unpack_bframes_bsf.c index ba970794c5..3a0ba105f5 100644 --- a/libavcodec/mpeg4_unpack_bframes_bsf.c +++ b/libavcodec/mpeg4_unpack_bframes_bsf.c @@ -149,6 +149,9 @@ static int mpeg4_unpack_bframes_filter(AVBSFContext *ctx, AVPacket *out) av_packet_move_ref(out, in); out->size = pos_vop2; } else if (pos_p >= 0) { + ret = av_packet_make_writable(in); + if (ret < 0) + goto fail; av_log(ctx, AV_LOG_DEBUG, "Updating DivX userdata (remove trailing 'p').\n"); av_packet_move_ref(out, in); /* remove 'p' (packed) from the end of the (DivX) userdata string */ |